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Frost-cracking proofing pavement

A technology of anti-freeze cracking and particle size, applied in the field of road pavement, can solve the problems of affecting transportation, weak tensile strength, pavement cracks, etc., and achieve the effects of improving the natural environment, enhancing compressive strength, and enhancing toughness

Active Publication Date: 2019-05-03
广东中煌建筑工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing road surface is mainly asphalt or concrete pavement, which has weak tensile strength. In cold weather conditions, the pavement is prone to shrinkage. When the shrinkage of the pavement layer exceeds the tensile stress that the pavement material can bear, it is easy to Cause cracks on the road surface; in addition, for areas with high temperature, because the road surface is exposed to the sun for a long time, the temperature of the road surface will be high, and when the temperature drops at night, the temperature of the road surface will easily drop, and the temperature difference will form a larger temperature Stress, when the temperature stress exceeds the tensile strength of the pavement, it is also easy to cause cracks in the pavement, thus affecting transportation, so there is still room for improvement

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0056] An antifreeze crack pavement, comprising the following components in parts by mass:

[0057] Asphalt 7kg; gravel 50kg; fine sand 15kg; mineral powder 7kg; waste rubber particles 5kg; vulcanizing agent 1kg; aniline 0.5kg; m-hydroxybenzoic acid 1kg; hollow glass microspheres 3kg.

[0058] In this embodiment, the particle size of crushed stone is 10 mm.

[0059] In this embodiment, the particle size of the fine sand is 5mm.

[0060] In this embodiment, the particle size of the mineral powder is 0.07mm.

[0061] In this embodiment, the particle size of the hollow glass microspheres is 10 μm.

[0062] The construction method of antifreeze cracked pavement is as follows:

[0063] S1, the preparation of raw material, specifically as follows:

[0064] Add 5kg of waste rubber particles into a 150L stirred tank, stir at a speed of 120r / min, and control the temperature at 155°C, add 1kg of vulcanizing agent and 0.5kg of aniline while stirring, and form a rubber emulsion after ...

Embodiment 2

[0068] An antifreeze crack pavement, comprising the following components in parts by mass:

[0069] Asphalt 8kg; gravel 60kg; fine sand 17kg; mineral powder 8kg; waste rubber particles 6kg; vulcanizing agent 1.5kg; aniline 0.7kg; m-hydroxybenzoic acid 1.3kg; hollow glass microspheres 3.5kg.

[0070] In this embodiment, the particle size of the gravel is 17mm.

[0071] In this embodiment, the particle size of the fine sand is 6mm.

[0072] In this embodiment, the particle size of the mineral powder is 0.06mm.

[0073] In this embodiment, the particle size of the hollow glass microspheres is 13 μm.

[0074] The construction method of antifreeze cracked pavement is as follows:

[0075] S1, the preparation of raw material, specifically as follows:

[0076] Add 6kg of waste rubber particles into a 150L stirring tank, stir at a speed of 120r / min, and control the temperature at 160°C, add 1.5kg of vulcanizing agent and 0.7kg of aniline while stirring, and form a rubber emulsion a...

Embodiment 3

[0080] An antifreeze crack pavement, comprising the following components in parts by mass:

[0081] Asphalt 10kg; gravel 70kg; fine sand 20kg; mineral powder 10kg; waste rubber particles 7kg; vulcanizing agent 2kg; aniline 1kg; m-hydroxybenzoic acid 1.5kg; hollow glass microspheres 4kg.

[0082] In this embodiment, the particle size of crushed stone is 25 mm.

[0083] In this embodiment, the particle size of the fine sand is 7mm.

[0084] In this embodiment, the particle size of the mineral powder is 0.05mm.

[0085] In this embodiment, the particle size of the hollow glass microspheres is 15 μm.

[0086] The construction method of antifreeze cracked pavement is as follows:

[0087] S1, the preparation of raw material, specifically as follows:

[0088] Add 7kg of waste rubber particles into a 150L stirring tank, stir at a speed of 120r / min, and control the temperature at 165°C, add 2kg of vulcanizing agent and 1kg of aniline while stirring, and form a rubber emulsion after...

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Abstract

The invention relates to the technical field of road pavement. Directed at the problem of easy cracking of a pavement under the condition of a low temperature, the invention provides a frost-crackingproofing pavement. The frost-cracking proofing pavement comprises the following components by mass: 7 to 10 parts of asphalt, 50 to 70 parts of gravels, 15 to 20 parts of fine sand, 7 to 10 parts of mineral powder, 5 to 7 parts of waste rubber particles, 1 to 2 parts of a vulcanizing agent, 0.5 to 1 part of aniline, 1 to 1.5 parts of m-hydroxybenzoic acid and 3 to 4 parts of hollow glass beads. According to the invention, through addition of the waste rubber particles, wastes are easily recovered and utilized, and the natural environment is easily improved; meanwhile, toughness, tensile strength and frost-cracking resistance of the pavement are easily reinforced.

Description

technical field [0001] The invention relates to the technical field of road pavement, more specifically, it relates to an anti-freezing and cracking pavement. Background technique [0002] Transportation is the artery of the national economy and plays an inestimable role in the development of the entire national economy. With the rapid development of my country's economy, road traffic has become the lifeline of modern cities. [0003] The existing road surface is mainly asphalt or concrete pavement, which has weak tensile strength. In cold weather conditions, the pavement is prone to shrinkage. When the shrinkage of the pavement layer exceeds the tensile stress that the pavement material can bear, it is easy to Cause cracks on the road surface; in addition, for areas with high temperature, because the road surface is exposed to the sun for a long time, the temperature of the road surface will be high, and when the temperature drops at night, the temperature of the road surf...

Claims

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Application Information

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IPC IPC(8): C04B26/26C04B111/34
Inventor 郭利通郭利泉
Owner 广东中煌建筑工程有限公司
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